break up
verb
1.
2.
3.
4.
8.
take apart into its constituent pieces
See also:
break 9.
destroy the completeness of a set of related items
11.
attack with or as if with a pickaxe of ice or rocky ground, for example
12.
release ice
14.
bring the association of to an end or cause to break up
15.
come to an end (of a state)
16.
break or cause to break into pieces
17.
cause to separate
18.
19.
laugh unrestrainedly